Cushion



FIG. 1 is a front, top and left side perspective view of a cushion showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a bottom plan view;

FIG. 5 is a top plan view;

FIG. 6 is a side elevational view; and

FIG. 7 is a sectional view taken along lines 7--7 of FIG. 1. 

The ornamental design for a cushion, as shown and described. 